The general scheme for teleportation of a multi-particle d-level quantumstate is presented when m pairs of partially entangled particles are utilized as quantum channels.The probabilistic teleportation can be achieved...The general scheme for teleportation of a multi-particle d-level quantumstate is presented when m pairs of partially entangled particles are utilized as quantum channels.The probabilistic teleportation can be achieved with a successful probability of Π from N=0 to d-1of (C_0~N)~2/d~M, which is determined by the smallest coefficients of each entangled channels.展开更多
Using the generalized Bell states and quantum gates, we introduce a quantum encryption scheme of d-level states （qudits）. The scheme can detect and correct arbitrary transmission errors using only local operations a...Using the generalized Bell states and quantum gates, we introduce a quantum encryption scheme of d-level states （qudits）. The scheme can detect and correct arbitrary transmission errors using only local operations and classical communications between the communicators. In addition, the entanglement key used to encrypt can be recycled. The protocol is informationally secure, because the output state is a totally mixed one for every input state p.展开更多
文摘The general scheme for teleportation of a multi-particle d-level quantumstate is presented when m pairs of partially entangled particles are utilized as quantum channels.The probabilistic teleportation can be achieved with a successful probability of Π from N=0 to d-1of (C_0~N)~2/d~M, which is determined by the smallest coefficients of each entangled channels.
基金Project supported by the National Natural Science Foundation of China （Grant No 60373059）, the Special Research Fund for the Doctoral Program of Higher Education of China （Grant No 20040013007）, the Major Research plan of the National Natural Science Foundation of China（Grant No 90604023）, the National Laboratory for Modern Communications Science Foundation of China, the National Key Laboratory on Theory and Chief Technology of Integrated Services Networks （ISN） 0pen Foundation, and the Graduate Students Innovation Foundation of Beijing University of Posts and Telecommunications.
文摘Using the generalized Bell states and quantum gates, we introduce a quantum encryption scheme of d-level states （qudits）. The scheme can detect and correct arbitrary transmission errors using only local operations and classical communications between the communicators. In addition, the entanglement key used to encrypt can be recycled. The protocol is informationally secure, because the output state is a totally mixed one for every input state p.
文摘目的:探讨小儿过敏性紫癜(Henoch Schoenlein purpura,HSP)患儿发生急性肾损伤状况及其影响因素。方法:回顾性收集2019年1月-2023年12月信阳市人民医院收治的103例HSP患儿临床资料。统计HSP患儿急性肾损伤发生情况,并根据HSP患儿急性肾损伤的发生情况,将患儿分为发生组和未发生组。收集并对比两组患儿的基线资料。多元Logistic回归分析检验HSP患儿发生急性肾损伤的影响因素。结果:103位HSP患儿中有15例发生急性肾损伤,发生率为14.56%,纳入发生组。88例HSP患儿未发生急性肾损伤,纳入未发生组。发生组的中性粒细胞/淋巴细胞比值(Neutrophil to Lymphocyte Ratio,NLR)、血小板/淋巴细胞比值(Platelet to lymphocyte ratio,PLR)水平、维生素D水平与未发生组均有显著差异(P<0.05)。两组的年龄、性别、HSP类型、服用皮质类固醇、血抗链球菌溶血素O性质、静脉注射免疫球蛋白、24 h尿微量白蛋白排泄率、尿素氮等其他资料均无显著差异(P>0.05)。多元Logistic回归分析,结果显示,NLR水平高、PLR水平高、维生素D水平低是HSP患儿发生急性肾损伤的影响因素(OR>1,P<0.05)。结论:HSP患儿急性肾损伤发生率略高,NLR水平高、PLR水平高、维生素D水平低是HSP患儿发生急性肾损伤的影响因素。
